Paper Shredder blades do not turn, even though...

Question

I accidently put a small stack of 5 pieces of paper with just my address torn from junk mail into a Bosser Paper Shredder. It was on auto and the thickness and slick paper jammed the shredder, so it stopped turning and the motor stopped. I removed all of the pieces of paper and now the motor runs, but not the blades. They do not turn in auto, forward or reverse. Any ideas on repairing this problem? Thank YOU!!